Cited by 17Colorectal Cancer Treatments and StudiesCancer Genomics and DiagnosticsGenetic factors in colorectal cancer

Clinical features associated with NeoRAS wild-type metastatic colorectal cancer A SCRUM-Japan GOZILA substudy

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Osumi, Hiroki, Shinozaki, Eiji, Nakamura, Yoshiaki, Esaki, Taito, Yasui, Hisateru, Taniguchi, Hiroya, Satake, Hironaga, Sunakawa, Yu +12 more·2024·Nature Communications

Abstract

“Neo RAS WT” refers to the loss of RAS mutations (MTs) following first-line treatment in metastatic colorectal cancer (mCRC). We evaluate the incidence and clinicopathological characteristics of Neo RAS WT mCRC using next-generation sequencing of plasma circulating tumor DNA. Patients with mCRC enrolled in the GOZILA study initially diagnosed with tissue RAS MT mCRC and received subsequent systemic therapy are eligible. Neo RAS WT is defined as the absence of detectable RAS MT in plasma and assessed in all eligible patients (Group A) and in a subgroup with at least one somatic alteration detected in plasma (Group B). Overall, 478 patients are included. Neo RAS WT prevalence is 19.0% (91/478) in Group A and 9.8% (42/429) in Group B. Absence of liver or lymph node metastasis and tissue RAS MTs other than KRAS exon 2 MTs are significantly associated with Neo RAS WT emergence. Overall, 1/6 and 2/6 patients with Neo RAS WT treated with anti-EGFR monoclonal antibodies (mAbs) show partial response and stable disease for ≥6 months, respectively. Neo RAS WT mCRC is observed at a meaningful prevalence, and anti-EGFR mAb-based therapy may be effective.

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Authors
Osumi, H., Shinozaki, E., Nakamura, Y., Esaki, T., Yasui, H., Taniguchi, H., Satake, H., Sunakawa, Y., Komatsu, Y., Kagawa, Y., Denda, T., Shiozawa, M., Satoh, T., Nishina, T., Goto, M., Takahashi, N., Kato, T., Bando, H., Yamaguchi, K., & Yoshino, T.
Affiliations
  • The Cancer Institute Hospital (JP)
  • National Cancer Center Hospital East (JP)
  • National Hospital Organization Kyushu Cancer Center (JP)
  • Kobe Medical Center (JP)
  • Aichi Cancer Center (JP)
  • Kōchi University (JP)
  • St. Marianna University School of Medicine (JP)
  • Hokkaido University Hospital (JP)
  • Osaka Prefectural Medical Center (JP)
  • Chiba Cancer Center (JP)
  • Kanagawa Cancer Center (JP)
  • Osaka University Hospital (JP)
  • Shikoku Cancer Center (JP)
  • Osaka Medical and Pharmaceutical University Hospital (JP)
  • Saitama Cancer Center (JP)
  • Osaka National Hospital (JP)
Corresponding author
  • Shinozaki, Eiji
  • Yoshino, Takayuki
Venue
Nature Communications
Published
2024-07-13
Volume
15
Issue
1
Pages
5885-5885
ISSN
2041-1723 (ISSN-L)
OpenAlex
W4400608706
Cited by
17
References
51
Citations by year
2026: 6 · 2025: 10 · 2024: 1
FWCI
2.91
Type
journal article
Language
en
Open access
Locations
  • Nature Communications (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Institutional Repositories DataBase (IRDB) (submittedVersion, cc-by-nc-nd)
  • RePEc: Research Papers in Economics (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Kanazawa University
  • University of Tsukuba
  • Saitama Medical University
  • Japan Society for the Promotion of Science (22K08023)
Topics
  • Health Sciences › Medicine › Oncology › Colorectal Cancer Treatments and Studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer Genomics and Diagnostics
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Genetic factors in colorectal cancer
Keywords
metastatic colorectal cancer, circulating tumor DNA, liquid biopsy, KRAS exon 2 mutation, anti-EGFR monoclonal antibody, first-line systemic therapy, liver metastasis, lymph node metastasis, treatment response, clinical predictors
MeSH terms
Circulating Tumor DNA, Adult, Aged, Aged, 80 and over, Antibodies, Monoclonal, Female, Humans, Japan, Liver Neoplasms, Lymphatic Metastasis, Male, Middle Aged, Mutation, Neoplasm Metastasis, Colorectal Neoplasms, Proto-Oncogene Proteins p21(ras), High-Throughput Nucleotide Sequencing, ErbB Receptors

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